Quote ="Scarlet Pimpernell"I guess you believe in Brexit so what do you think to 300,000 British passport holders coming in from Hong Kong.'"
Well for a start they're British National (Overseas) or BN(O) passport holders, which doesn't currently give them the right to live or work here, but gives them right to remain for 6 months.
The government are considering extending right to remain to 12 months and there is a train of though that modern immigration laws would permit right of abode though this appears to run contrary to the 1984 Sino-British joint declaration on the future of Hong Kong.
What do I think? I think if it's legal, fair enough and I can certainly empathise with the desire to escape the Chinese regime. It's unlikely 300,000 would seek abode in the UK as other nations would probably open their arms, but it's worth considering the impact a couple of hundred thousand would have in addition to normal net migration of about 230k a year.